Dtc B2055 Radar Sensor Malfunction

Restraints. Lexus Gs430, Gs300. Uzs190 Grs190
Pre-Crash Safety. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

CHECK DTC (PRE-CRASH SAFETY SYSTEM)

DTC B2055 Radar Sensor Malfunction


DESCRIPTION

This DTC is output when one of the following occurs: 1) an error in communication with the millimeter wave radar sensor assembly is detected, or 2) vehicle information sent from the radar sensor assembly is abnormal. If output, perform initialization on the radar sensor assembly to register the vehicle information to the radar sensor assembly.

DTC No.
DTC Detection Condition
Trouble Area
B2055
Radar sensor assembly malfunction is detected or initialization settings are faulty
  1. Millimeter wave radar sensor
  2. Seat belt control ECU

INSPECTION PROCEDURE

NOTICE:
When the seat belt control ECU is replaced with a new one, Active Test must be performed (Click here).
1.CHECK DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)

  1. Delete the DTC (Click here).

  1. Recheck for DTC.

    OK:
    DTC P1570 is not output.


NG
GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM
OK


2.CHECK DTC (PRE-CRASH SAFETY SYSTEM)

  1. Delete the DTC (Click here).

  1. Recheck for DTC.

    OK:
    DTC B2055 is not output.


NG
REPLACE SEAT BELT CONTROL ECU
OK

END